It's a brutal year to be in the Grammy nominations handicapping game. Sure, there are a few safe bets. Mumford & Sons and New Orleans-born Frank Ocean are expected to take a share of nominations when they're announced Wednesday night at 9 p.m. on CBS during "The Grammy Nominations Concert Live!" in Nashville.

And popular songs by Gotye, fun., Taylor Swift and Carly Rae Jepsen may land those artists on the list as well, though Jepsen harbors some doubt her omnipresent song "Call Me Maybe" will net a nod.

"I would be so shocked," the 27-year-old singer said last week. "But this year has taught me to look forward to surprises and just be ready for anything. So, cross your fingers for me."

Viral songs like Jepsen's seemed to be the theme of the year, and with no watershed albums during the nominating period for the 2013 Grammys like Adele's "21" or Kanye West's "My Beautiful Dark Twisted Fantasy," it's not clear who will turn out as this year's top nominee.

Thus the guessing game.

The Grammy nominations period ended Sept. 30 and three of the year's top four debuting albums — from Swift, One Direction and Jason Aldean — came after that date. Rihanna also released a new album after the period ended. All could have songs nominated, but a popular album is the quickest way to accumulate multiple nods.

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